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Hate to constantly ask the same thing. The buzzer alarm stays on all the time, no matter if doors are open, closed, key in or out of ignition switch. I am at a total loss.
i know that there is a contact in the steering column. could that be causing the problem. Would that make it buzz constantly? Hate to take the steering column apart and replace the part if it is not a possible cause. Any ideas? 1975 with tilt/telescoping steering wheel.
I am going by the way my 1973 is wired. I am guessing that the switch (funny looking spring) is broken and always thinks the key is always in the ignition, but when the key is turn to the on position the buzzer should be silent. It may be that the problem lies with the ignition switch, because the buzzer (should) goes silent once the key is turned To the “ON” position. Do your courtesy lights come on when the doors are opened? You can disconnect the key buzzer wires at the Harmonica Connector. On my 73 the colors are Pink and Pink/Black, the small brass pin connector can be removed (see Willcox turn signal switch replacement instructions). Does your radio come on when the key switch is turned to the Accessory position?
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
If the 'tab' is stuck a little oil might help.
Or the 'switch' the tab hits may need adjustment or replacement.
See Jim Shea's paperwork if you go there http://jimshea.corvettefaq.com/?cat=5
To silence it temporally disconnect the 'F' wire at the harmonica connection.
There are 2 parts and an inexpensive puller kit you will probable need. You can sit in the driver seat and do this job. It does not need that high a skill level, just take your time and be careful. Disconnect the battery first.
The Jim Shea papers give you a complete step by step written method of R&R.
Here is a "speeded up" column restoration video with the disassembly you probably need ending around the 2min 40sec mark with the lock removal and the tilt key warning buzzer. Once the key buzzer is removed, then you can start the assembly.
Assembly begins at the 13min mark with the suspect parts replacement at 13min 47sec and 14min 52sec
Here's the additional information to further explain.
Hi Vinnie,
That constant buzzer was hard to figure out. The culprit is made of plastic with thin copper reeds. With the key in, it makes the reeds to touch and the buzzer to sound. The plastic breaks with age and the contacts touch with or without the key buzzing constant.
The other part that also falls apart with age is the C clip insulator to prevent the horn from random blowing.
I was all prepared to fix the buzzer problem and that C clip fell apart. I had to order one before I could do the job; so have it ahead.
The parts are the same from every dealer so price helps. Below is the links from Davies.
Same with the puller kit; get it from any source.
Read about not pulling the telescopic column out when the star bolt/screw is removed and the column is apart allowing the rod to fall out.
I just put a towel on my passenger seat for parts and tools and did the job. You should have no problem. Info is below.
Good luck, Lenny
Thanks for the information, it is helpful and I believe that from what you are saying and what I have searched, it is the source of the problem. Thanks for the suggestion about the c clip.
If i can fix that, the only other issue i have is the seat belt system. It looks like all the connections are there, but seat belt warning light does not go on and i am not sure if the buckles con nections are working.
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Something else to check
The seat buckle switch is normally closed (passes 12 volts) when not buckled.
The seat bottom switch is normally open (12 volts pass only when someone is in the seat).
Key Buzzer Alarm
